Connecting-rod.



A. L. WYMAN. CONNECTING ROD. APPLICATION FILED DBO. 1, 1911.

1,043,495. Patented Nov. 5, 1912.

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A. L. WYMAN. CONNECTING ROD.

APPLICATION FILED DEC. 1, 1911.

Patented Nov. 5, 1912.

2 SHEETS-SHBET 2.

BVM

UNITED STATES PATENT OFFICE.

ALTON L. WYMAN, OF MINNEAPOLIS, MINNESOTA, ASSIGNOR, BY MESNE ASSIGN-MENTS, TO EMERSON-BRANTINGI-IAM COMPANY, OF ROCKFORD, ILLINOIS, A COR-POEATION OF ILLINOIS.

CONNECTING-ROD.

noaaaea.

To all whom it may concern.-

Be it known that I, ALTON L. WYMAN, of Minneapolis, Hennepin county,Minnesota, have invented certain new and useful Improvements inConnecting-Rods, of which the following is a specification.

The object of my invention is toprovide improved means for attaching aconnecting rod to a crank to the end that the attachment and lateradjustment can be easily and quickly made and the parts when onceadjusted and locked will be rigidly held against accidental loosening orseparation.

A further object is to do away with all shims in the adjustment of therod.

The invention consists generally in an adjusting device which isentirely independent of the locking device.

Further the invention consists in an adjusting device in which thetake-up is lengthwise of the bearing.

Further the invention consists in providing a wedge take-up in which thebearing is on the width of the strap instead of the thickness of it,thus providing a much longer bearing surface.

in the accompanying drawings forming a connecting rod and a crank shaft,Fig.

is a view, partially in section, showing the construction of theattachment between the rod and shaft, Fig. 3 is a similar view, taken ona line at right angles substantially to the view shown in Fig. 2, Fig. 1is a detail sectional view illustrating the device for look ing theclamping wedges; Fig. 5 is a detail view of the device on whichthewedges are formed. i

In the drawing, 2'represents a crank case, 3 a cylindert and 1 a piston.

5 is a crank shaft and 6 a connecting rod.

7 is a pin mounted in the walls of the piston and provided with a recesson one. side to allow the insertion of a locking bolt 9 having a recess8 which permits the with drawal of the pin 7 when the bolt 9 is rotatedto bring the recess 8 opposite said pin.

The bolt 9 passes through the piston end of;

Specification of Letters Patent.

Application filed December 1, 1911.

Patented Nov. 5, 1912. Serial No. 663,368.

the connecting rod and is provided with a lock nut 10 having notches 11to receive a locking cotter-pin 12. The connecting rod 1s split at 13 toallow the bolt to clamp the rod securely on the pin. As shown in Fig; 1,it would he obviously impracticable to insert the bolt into its socketafter the con- .necting rod has been put in place in the piston. Itherefore insert this bolt intothe }rod and then thrust the rod into thepiston and rotate the bolt until its recess is in pojsition to receivethe pin and allow longitudifnal movement of the pinto connect the rod tothe piston. A strap 14 passes around the ;crank and has a cap orsemi-circular bearging plate 15 opposite a similar plate 16 that iscarried by the end of theconnecting rod, a sufficient space beingprovided between jthese bearing caps, as shown in Fig. 2, to 1 allowforadjustment to the surface of the ;crank and take up the wear in thebearing. The strap is provided with hooked ends 17 and shoulders 18 areformed on theconnecting rod and on these shoulders the flat faces of thewedge-shaped ends 19 of the plate 20are seated, the inclined faces ofthe iwedges engaging the hooked ends 17 of the strap and drawing thebearing plate 15 against the surface of the crank until the desireddegree of adjustment is obtained. The ends. of the strap are held inplace by a bolt 21 passing therethrough and provided with a lock nut 22having notches23 to receive a cotter-pin 241,. and said bolt passesthroughlongitudinal slots 25 inthe Wedges, said slotsbeing of sufficientlength to allow the lengthwise adjustment of. the wedges,-

but preventing their separation from the r hearin -A further advanta earises fromthe fact that the bearings of the wedges are across the strapor transversely thereof, instead of merely on the thickness of thestrap. The wedges are adjustable preferably by means of a bolt 26arranged transversely with respect to the bolt 21 and having a lockingmeans to prevent accidental turning of the bolt, consisting of a spring27 having an inwardly turned end 28 that is adapted to slip into notches29 in the head of the bolt.

I claim as my invention:

1. A bearing including movably connected members oppositely disposed,one of said members straddling the other member, said members havingopposing faces formed thereon, wedges engaging said faces for drawingsaid members together, one of said members and said wedges havingslotted openings therein, and a locking bolt passing through saidslotted openings and through the other member for locking them together.1 2. A bearing including separably movable members, one of said membersstraddling the other member, said members having opposing cam surfaces,a U-shaped plate having wedge-shaped ends to engage said cam surfaces,said wedge-shaped ends and one of said members having slotted openingstherein, a locking bolt passing through said openings and said othermember and an adjusting means for moving said plate and saidwedge-shaped ends simultaneously.

3. A connecting rod having transverse 7 bearing faces formed thereonnear one end,

a strap straddling the end of said rod and having bearing faces formedin its ends to register with the bearing faces of said rod, straptightening means to engage said bearing faces and draw said strap towardsaid rod, and a locking bolt passing through the ends of said strap andsaid tightening means.

a 4. A connecting rod having a bearing at one end, a U-shaped straphaving a bearing opposite that of said rod, the ends of said strap andsaid rod having transverse bearing faces therein, a U-shaped platehaving wedge-shaped ends to engage said bearing faces, means for movingsaid plate to adjust said wedge-shaped ends simultaneously, and a boltpassing through openings provided in the ends of said strap and in saidwedge-shaped ends, said openings allowing freedom of adjustment of saidstrap ends and said wedge-shaped ends.

' 5. A connecting rod having a bearing at one end, and transversebearing faces (:on

tiguous thereto, a strap having a hearing at its middle portion oppositethe bearing of said rod and havingits ends provided with hearing facescontiguous to the corre sponding faces of said rod, wedges contactingwith said bearing faces, the ends of said strap and said wedges havingopenings therein, a bolt passing through said open lngs, and a lockingbolt engaging said wedges and said rod for simultaneous adjustment ofsaid wedges.

6. A connecting rod having transversely arranged bearing faces at oneend, a strap straddling the end of said rod and having its endscontiguous to said bearing faces and provided with similar bearingfaces, wedges arranged to engage said bearing faces and draw the middleportion of said strap toward the end of said rod, said strap ends andsaid wedges having longitudinal slots therein, a bolt fitting withinsaid slots, and means for moving said wedges simultaneously to draw saidstrap and rod together.

7. A connecting rod having a bearing at one end, a strap having abearing at its middle portion opposite the bearing of said rod, the endsof said strap straddling said rod, said strap ends and said rod havingwedge seats formed thereon and inclined surfaces opposite said wedgeseats, wedges engaging said seats and surfaces for drawing said straptoward said rod, and a bolt passing through said strap ends and wedges,said ends and said wedges having openings therein to receive said boltand allowing freedom of endwise movement of said strap and wedges,substantially as described.

8. A connecting rod having transverse recesses formed therein at oneend, the op posing walls of said recesses having hearing faces, onebeing straight and the other inclined, a strap straddling the end ofsaid rod and also having transverse recesses therein and correspondingbearing faces, wedges having straight and inclined faces engaging thecorresponding faces of said rod and said strap, said wedges and strapends having slotted openings therein, a locking bolt passing throughsaid openings and said rod, and means for adjusting said wedges totighten said strap. l

9. A connecting rod comprising a hearing head at the end thereof havingplane faced outside walls, each terminating in a right angled shoulder,a movable bearing cap provided with straps overlying and engaging saidfaces, each of said straps being provided with a transverse slot acrossthe inner face thereof, the end wall of said slot being oblique withrespect to the wall of said shoulder, keys between said slot walls andsaid shoulders for holding the bearing cap in connection with thebearing head, and means to move the keys thereby to effect movement ofthe bearing cap.

10. A connecting rod comprising a bearing head at the end thereof havingplane faced outside walls, each terininating in a right angled shoulder,a movable bearing cap provided with straps overlying and engaging saidfaces, each of said straps being provided with a transverse slot acrossthe inner face thereof, the end wall of said slot being oblique Withrespect to the Wall of said shoulder, keys between said slot Walls andsaid shoulders for holding the bearing cap in connection with thebearing head, and means for moving the keys simultaneously thereby toeffect movement of the bearing cap.

ALTON L. WYMAN.

WVitne-sses GENEVIEVE E. SORENSEN, G. H. REHFUSS.

Goyies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, I). G.

